Portable tool-working device



0. SPERLI'NG.

PORTABLE TOOL WORKING DEVICE.

APPLlCATiON FILED JUNE 27, 1917.,

1 70,768, Patented Mar. 8, 1921.

UNITED STATES PATENT OFFICE.

oson ermine, or new You, n. 2., assreuoa 'ro norm! some: comm, me, or m rent, it. 1., a comm-non or new YORK.

ronrmn rooL-woaxmo navrcn lpeomoation of Letter: Patent.

Patented Mar. 8 1921.

Application ma mm, 1017. mm llo. 177,203.

To all whom it may concern:

Be it known that -I, Osoan Srnnuno, a citizen of Sweden, and a resident of the boron h of Manhattan, in the county, city,

Primarily, the invention has for its object to roduce a device of the nature set forth which will render power-driven tools truly portable, and make their employment in that respect as practical and convenient as could be accomplished with manually-operated implements of same description.

Another object 's the production of an appliance of the character described involving a mode of suspension that permits attachment thereof to the erson, insuch a manner that it can be read1 put on, carried with comfort operated withease, and promptly detached sooner if desired.

A further object is to provide a tool car- I rier of the type referred to which shall be erfectl' adjustable, in the sense that it can quic y fitted on the person equipped with the same, so as to accommodate people of variousstatures, that is, having marked differences in height, girth, and cor ulence,

or even characterized by unequal b0 y measurements.

' Still another object is the provision of a tool: carrying device of the species mentioned which shall be adapted to receive and functionally hold either a generating or a converting apparatus wherewith to supply the power to 0 rate the tool.-

A still furt er objen is to originate a at the completion of the work, or

novel method of mounting the said power- 4 supplying apparatus, its equipment and tool operating connections, that will afford the best disposition of these various elements on the support relatively to one another, such as w1l avoid interference with the moving parts, give ready access to the motion controlling means, and insure full freedom to the arms of the user while the tool is being operated. v

An additional object is to devise a simple construction and arrangement ofthe parts constitutin admit of its being economically roduced and retailed at a price permitting its adopthe portable device that will tion and use by numerous artisans in difierent trades and manufactures.

Other objects and advantages will become apparent as the specification procee With the aforesaid objects in view the invention consists of the improvements, novel construction, arrangements and combinations of parts hereinafter described, defined in the subjoined claims, and illustrated in their preferred embodiments by the annexed drawin s, wherein like elements are designated y the same reference characters throughout the several views.

In the said drawings Figure I is a top plan view of a portable tool working device exemplifying one em bodiment of the invention, certain parts beingvshown in section;

ig. II is a partly broken sectional side elevation of the same, the section being taken on the line IIII of Fig. I;

Fig. III is a rear elevation of the device broken in the upper part;

Fig. IV is a front elevation of the same form of the invention; and

Fig. V is a perspective view illustrating a modified structure for themounting of the power supplying apparatus on\ the portable support. I

As shown in Figs. I to IV,'inclusive, this improved device includes a belt com rising a plurality of rigid or semi-rigid mem ers, as 1 and 2, which are arranged to lap over each other'lengthwise at the back of the wearer, and are a justable one relatively to the other to permit either the lengthening or the shortenin of. the belt as may be requlred. On the sic les, the members 1, 2 are rovided with opposite curves 3, 4, respective y adapted to embrace the waist of the wearers body at op osite points, in a manner that will be readily understood. These two belt members, including their respective curves, are conveniently made of resilient sheet-metal, and may vary in thickness according to the weight of the parts to be carried, or the mode of attachment thereof to the support.

Forwardly of the said curves, the belt includes a pair of flexible or pliable members 5 and 6, the purpose whereof is to tlghten and hold the belt in correct position on the body. The last-named members preferably consist of leather straps looped each by one end to the front terminals of the metallic members 1, 2, respectively, and adapted to be tied together in front by means of a buckle 7 in a well-known manner.

Being constructed as above described, it will be seen that the belt can easily be fitted to the body of the workman who is to use the tool support, whether he be of normal corpulency, or departs from the same either Way. Thus, for instance, the sundry members of the belt may be drawn outwardly, both at the front and back, toaccommodate a person of ample girth, or else the very same members can be drawn inwardly to provide an appliance of minor compass for one of smaller physical dimensions.

The belt aforesaid is supplemented by shoulder braces 11 and 12, consisting also preferably of resilient sheet-metal bands designed to reach from points situated at a greater or less distance beneath the belt to and around both the right and left shoulders of the erson upon whom the support is placed. urves 13, 14 are formed at the upper ends of the two braces to enable them properly to surround the omoplates and adjoining muscles thereabove. From the forward extremities of these curves depend flexible bands, as 15, 16 and 17, 18, which serve to unite the shoulder braces in front with the corresponding pliable part of the belt. As represented in the drawin the bands 15, 16 and 17, 18 may consist of leather straps connected in pairs centrally by buckles 19, 20, and looped at their opposite ends to the forward portions of the belt and overhanging shoulder braces, respectively.

To the rear portions of the shoulder braces 11, 12, are attached hangers or complementary straps 23, 24, which cover them for part of the length of each, as shown. These hangers are adjustably connected with both the braces and the belt supplemented thereby, and answer several requirements. In the first place, they serve as reinforcements to the two braces, to which the are held at their upper ends b means 0 bolts 25, and winged nuts 26. ondl the hangers coact with the braces in e ecting a firm connection with the belt, the members 1 and 2 of which are preferably placed with relation to the first mentioned parts, in the manner indicated in Figs. I and II. The connection, it will be seen, consists of bolts 27, 28, and win (1 nuts 29, 30. The bolts 27 28 are sufiicient y long to pass through the braces, the hangers, and the lapped ends of the belt members 1 and 2, which are made to alternate with the hangers and braces, as clearl a pears in the two views last name hirdly, the hangers afford side bearings and distance pieces for the mounting of t 1e power-supplying apparatus, hereinafter described.

A number of perforations, as 33 and 34, are provided in the lapping ends of both members 1 and 2 of the belt, and in both pairs of overlaid braces and hangers, The bolts 25, 27,28 arerespectively accommodated by these perforations, and throu h them allow for the lateral adjustment of t e belt reviously spoken of, and also for the lengt ening or shortening, and inclining of the shoulder braces to suit persons of different heights, and different widths of shoulders. The bolts and the perforations further permit relative adjustment between the shoulder braces and the hangers 23, 24, as well as betweenthe braces themselves.

It will be observed that the front ends of the belt members 1, 2 and of the shoulder braces 11, 12, are curved upon themselves to form roller-like bearings, as 36, 37, for the ends of the leather straps 5, 6, and 15, 17, thereto attached. 'The ends of the straps referred to are passed through slots 38, 39, cut through the sheet-metal bands close to their said bearings, and thence are folded down upon the main strap portions, to which they are sewed, or riveted, or otherwise suitably fastened. This construction, it will be noted, presents several advantages, as the rolled ends of the metal not only afford excellent bearing surfaces for the leather, which they tend to conserve, but they also prevent the more or less shar extremities of the metallic bands from eitlier tearing the clothing or chafing the body of the person using theappliance.

A mounting for the power-supplying apparatus is provided at the rear of the toolsupport, preferably below the belt portion thereof, as represented in the drawing. Two forms of this mounting are shown, as will be noticed, either one of which may be used with practically equal advantage. One form includes a receiver 41, consisting of a curved pan or base, illustrated in Figs. I to IV, while the other form has instead a can be secure receiver 42 presenting a flat base or shelf, shown in fi v.

Either form of mounting aforesaid is rovided with an zintefral, right-angled an e, 48,. and open-en ed slots 44, 45, 10- ca with the receiver, 41 or 42. In either instance, the o -ended slots permit the insertion therem ofthe lower ends of the shoulder braces 11, 12, and overlying han era 23, 24. This brings the flan e 43 insi e the ap liance and enables it to attached to the men face of the belt. As shown, the bolts 27, 28, before mentioned, supply the means of attachment. The receiver is thereby sus ended firmly from the aggregated rear be t members.

A pad 47 is laced on the outside of the 43 at t 0 place where the belt is.

flange brought to bear over the loins of the wearer. This pad not only ives relief from pressure exerted by the It, but further serves to insulate the body from the same, in case an electric motor is employed as the powersuppl ing apparatus. Any suitable means may resorted to for the purpose of securm the pad in place on the belt, the

same eing conveniently riveted or cemented on, or otherwise aflixed. The lower extremities of the shoulder stra s 11 and 12 also operate to protect the ho y by holding the receiver or article support 41 at a suitable distance therefrom, as these straps pass through the slots 44, 45 in the ofl'set of the flange 43.

As above intimated, the power-supplying apparatus may well consist of a smal electric motor, as 50. If the curved receiver 41 be used, the motor will be nested within it, as seen in Fi 1 to IV, in which case it to the bottom of the receiver by a simple screw and nut fastening, as at 51. On the other hand, if the flat receiver 42 be employed, the motor will be seated s uarely t ereon, and held down by a cow p e of screws adapted to engage holes 53, 54, shown in Fi V. The electric current may be furnishe to the motor from batteries carried beside it within the receiver, or

from any other referred source.

A controller or the electric motor is provided on the belt of the supplort, preferably at the right hand side, w ere it can be laced within easy reach of the operator. his controller may consist of a simple resser switch 56, adapted to make and break the electric circuit. As shown, the switch 56 is formed with a hook 57, by means of which it can be ermanently susended from the belt, ans to that end, a keeper 58 is struck out of the metallic member 1, to aflord a means of engagement for the hook. Between the switch and the motor at the back of the belt are placed the circuit wires, which are properly incased in at or near the junction of the flange an insulatingconduit 60. The latter, like the wires therein, is made flexible so as to follow the curvature of the belt, and to prevent excessive sagging, it is furnished with an mtermediate rest 61, which may consist of a metal loop having a hook .62, adapted to takeover a keeper 63, also struck out from the belt member 1, at the rear.

Power may be transmitted from the motor to the tool in any a proved manner. For exam le, a flexible s aft 65 may be used for t at urpose. One advanta of this form of s aft is that it adapts itself instantly to the configuration of the suport and will supply the needed motive orce to the tool in an desired position.

An abrading tool 6 has been shown in the annexed drawing as connected for operation by the flexible shaft above mentioned. This particular species of tool, it should be understood, is merely shown by way of example. The invention contemplate the o eration of any type of tool, to which t e portable device herein described can be ada ted, and therefore no limitation is inten ed on account of the specific exemplification now given.

A series of ockets 68, 69, 70, may be attached to the eft member 2 of the belt, to receive a number of hand tools, such as artisans ordinarily car and find most useful in the pursuit of t eir respective callform, arrangements, sizes, proportions and details thereof may be made without departing from the see c of the invention as defined by the appen ed claims.

Having described m desire to secure by claim is 1. A device of the character described, including in combination, a belt, shoulder straps and a rearwardly depending article support; said belt and shoulder straps comprising resilient metallic members adapted to take around'the greater part of the users body from the rear toward the front thereof, and pliant elements supplementing said members to completely surround the body in front; and means extending below the members interposed between said support and theloins of the body serving to hold the former spaced from the latter, said means constituting extensions of said shoulder stra s.

2. A device of the character described, in-

tters Patent and eluding in combination, a belt and shoulder straps composed of resilient metallic members arranged to envelop the ma or portions of the users body from the rear to the front, and supplementary pliant elements taking over the remaining forward part of the body; an article support havin a flan offset toward the body and to w iohsaid members are attached, the lower portions of said straps passing the offset of said flange between it and said support, and means for securing the members of said belt and shoulder straps to the flange in overlapping relation.

3. A device of the character described, including in combination, a belt, shoulder straps and an article support, said belt comprising two resilient metallic members formed at opposed ends with curved portions adapted to partially take around the body of the user, while the other extremities of the members are arranged in overlapping relation one to the other, pliant means connected to the terminals of said curved portions serving to supplement the members in completely taking around the body of the user and to hold the device in place thereon, said straps consisting of resilient metallic elements provided at their upper ends with curved parts designed to take over the shoulders of the user, while the lower ends of the elements are disposed crosswise of the overlapping extremities of the members, other pliant means coupling the terminals of said curved parts with the first named means, and fastening means for securing the overlapping extremities of the members and the lower ends of the elements to said support.

4. A device of the character described including in combination, belt members, shoulder elements and an article support, said members comprising a pair of resilient metallic bands formed at their front ends with curved portions adapted to partially envelop the waist of the user and having substantially straight rear extremities placed in overlapping relation one with the other, pliant means connected to the terminals of said curved portions serving to supplement the members in completely enveloping the body of the user to hold the device in place thereon, said elements consisting of resiliient metallic straps provided at their upper ends with curved parts designed to take over the shoulders of the user and having approximately straight lower extremities, Other pliant means coupling the terminals of said curved parts with said first named means, fastening means for securing the extremities of both the members and the elements to said support, and complemental metallic straps operatively uniting the shoulder elements with the support to assist in carrying the weight of the article on the latter.

5. A device of the character described, including in combination, belt members, shou lder elements, and an article support, said members, comprising a pair of resilient metallic bands formed at their outer ends with forwardly curved portions adapted to partially surround the waist of the user and having their inner extremities substantially straight and arranged to overlap one another at the back, pliant means connected to the terminals of said portions and supplementing the members in completely surrounding the waist of the user to hold the device in place thereon, said elements consisting of resilient metallic straps provided at their upper ends with curved parts designed to pass over the shoulders of the user and having approximately straight lower extremities other pliant means coupling the terminals oi said parts to said other means, hangers extending between the shoulder elements and said support to assist in carrying the load on the same, fastenin means for adjustably securing one end 0? said hangers to the elements, and other fastening means for holding the latter to the other end of the hangers and to both the members and the suport.

p 6. A device of the character described, including in combination, belt members, shoulder elements, and an article support, said members comprising a pair of resilient bands formed at their forward ends with curved portions adapted to partially take around the body of the user and having their rearward extremities substantially straight and provided with perforations, said extremities being arranged in overlapping relation, pliant straps connected to the terminals of said portions and supplementing the members in completely taking around the body of the user to hold the device in place thereon, said elements consisting likewise of resilient bands formed at their upper ends with curved parts designed to take over the shoulders of the user and having their lower extremities provided with perforations, said last named extremities being spaced laterally one from the other, other pliant stra s coupling the terminals of said parts to said first mentioned straps, said support embodying a receiver and a flange, perforated hangers reaching from the middle of the shoulder elements to the article support, and bolts passing through the flange of the latter and the perforations in the members, the elements and said hangers.

7. In a device of the character described, a belt composed of resilient members substantially straight at one end and curved inwardly at their other end to fit around the users body, the straight ends of said members being overlapped, metallic shoulder straps having their lower ends interposed between the overlapping ends of said belt members, an article support, a "flange on said 5 article support having spaced openings therein, said belt members and shoulder straps also having spaced openings adapted to be brought into alinement with the openings in said flange, and bolts insertible in 10 said openings to hold the article support,

shoulder straps and belt members rigidly to ether igned at the borough of the city, county and fotate of New 25th day of June, A. D. i917.

OSCAR SPERLING. Witnesses:

C. KARLSON, A. M. Limmnsrxu'rm 

